package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.OrderItem;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.pojo.*;
import com.itheima.service.DeptService;
import com.itheima.service.EmpService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;

@Slf4j
@RestController
@RequestMapping("/emps")
public class EmpController {
    @Autowired
    private EmpService empService;
    @Autowired
    private DeptService deptService;
    @GetMapping
    public Result page(EmpQueryParam param) {
        log.info("员工列表查询条件：{}", param);
        // 调用Service层查询分页数据
        //创建分页对象
        Page<Emp> emps = new Page<>(param.getPage(), param.getPageSize());
        emps.addOrder(OrderItem.desc("update_time"));
        //做条件查询
        LambdaQueryWrapper<Emp> qw = new LambdaQueryWrapper<>();
        qw.like(param.getName()!=null&&param.getName().length()>0,Emp::getName,param.getName());
        qw.eq(param.getGender()!=null,Emp::getGender,param.getGender());
        qw.between(param.getBegin()!=null&&param.getEnd()!=null,Emp::getEntryDate,param.getBegin(),param.getEnd());
        Page<Emp> page = empService.page(emps,qw);
        List<Emp> records = page.getRecords();
        //1.先把所有的部门id收集起来
        Set<Integer> collect = records.stream().map(Emp::getDeptId).filter(Objects::nonNull).collect(Collectors.toSet());
        if (collect != null && collect.size() > 0) {
            List<Dept> depts = deptService.listByIds(collect);
//            //把对应的部门名称添加到emp中
//            for (Emp emp : records) {
//                for (Dept dep : depts) {
//                    if (emp!=null&&emp.getDeptId()!=null&&dep.getId()!=null&&emp.getDeptId().equals(dep.getId())) {
//                        emp.setDeptName(dep.getName());
//                    }
//                }
//            }


        }
        PageResult<Emp> empPageResult = new PageResult<>(page.getTotal(), page.getRecords());
        return Result.success(empPageResult);
    }
    @PostMapping
    public Result save(@RequestBody Emp emp) {
        log.info("新增员工，员工信息：{}", emp);
        // 调用service层方法保存员工信息和员工的工作经历信息
        empService.empSave(emp);

        return Result.success();
    }

    @DeleteMapping
    public Result delete(@RequestParam List<Integer> ids) {
        log.info("批量删除学生，{}", ids);

        empService.deleteEmp(ids);

        // 调用service层方法批量删除员工信息和员工工作经历信息

        return Result.success();
    }

    @GetMapping("/{id}")
    public Result getById(@PathVariable Integer id) {
        log.info("根据ID查询员工信息，id：{}", id);
   Emp result=  empService.getByIdEmp(id);
        return Result.success(result);
    }

    @PutMapping
    public Result update(@RequestBody Emp emp) {
        log.info("修改员工信息，员工信息：{}", emp);

        // 调用service层方法修改员工信息
        empService.empUpdate(emp);
        return Result.success();
    }

    @GetMapping("/list")
    public Result list() {
        log.info("查询员工列表");

        // 调用service层方法查询员工列表
        return Result.success();
    }
}
